Ignore the output from the several calls gc() used to
maximize available memory!
## used (Mb) gc trigger (Mb) max used (Mb)
## Ncells 2300078 122.9 4203792 224.6 3156587 168.6
## Vcells 402947783 3074.3 1137859298 8681.2 1261594852 9625.3
## used (Mb) gc trigger (Mb) max used (Mb)
## Ncells 1778745 95.0 4203792 224.6 3156587 168.6
## Vcells 187129650 1427.7 910287439 6945.0 1261594852 9625.3
## used (Mb) gc trigger (Mb) max used (Mb)
## Ncells 1527007 81.6 4207162 224.7 3157514 168.7
## Vcells 271386383 2070.6 937809599 7155.0 1261781468 9626.7
## used (Mb) gc trigger (Mb) max used (Mb)
## Ncells 1529618 81.7 4207162 224.7 3157514 168.7
## Vcells 271650518 2072.6 750247680 5724.0 1261781468 9626.7
## used (Mb) gc trigger (Mb) max used (Mb)
## Ncells 1540266 82.3 106214847 5672.5 259313588 13848.9
## Vcells 10282611 78.5 1310018111 9994.7 1609985633 12283.3
Large metro = NCHS categories 1 + 2
Small/Medium Metro = NCHS category 3
All Metro = NCH categories 1, 2, + 3
Non-metro = 4
Large metro = NCHS categories 1 + 2
Small/Medium Metro = NCHS category 3
All Metro = NCH categories 1, 2, + 3
Non-metro = 4
NB: Haven’t been able to generate a visually patterned order this way, so not outputting it.